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Latest Details
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Name
  GDS_J1840149-050320  
AAVSO UID
--  
Constellation
Scutum Sequence
J2000.0
18 40 14.97 -05 03 20.1  (280.06237 -5.05558) Search nearby
B1950.0 18 37 35.46 -05 06 09.5
Proper motion
RA: -20.1 +/- 19.0 mas/yDec: 0.0 +/- 15.6 mas/ySource: UCAC4
Galactic coord. 27.159 +0.176
Other names

(Internal only)
2MASS J18401496-0503199 ASASSN-V J184015.08-050320.1 ATO J280.0623-05.0555
GSC2.3 S9NF015151 THA 14-54 UCAC4 425-084184
USNO-A2.0 0825-12565365 USNO-B1.0 0849-0400280  
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Variability type
EB/WR
Spectral type WC9
Mag. range
13.90 - 14.03 V
Discoverer Bochum Galactic Disk Survey (GDS)
Epoch
04 Jul 2024 (HJD 2460496.143) Ephemeris
Outburst --
Period 3.39912 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto ASAS-SN magnitudes contaminated by nearby stars. Range has been corrected.
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References
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1 Marin, L. C.; et al., 2024, The Discovery of Three Galactic Wolf-Rayet
Stars
2024arXiv240811166M
2 Huang, C. X.; et al., 2020, Photometry of 10 Million Stars from the First
Two Years of TESS Full Frame Images: Part I
2020RNAAS...4..204H
3 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
4 M. Hackstein, Ch. Fein, M. Haas et al., 2015, AN 336, 590 2015AN....336..590H
5 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 1962CoBos..14....1T
External Links
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 9.25H = 8.65K = 8.26J - K = 0.99
AllWISE W1 = 7.89W2 = 7.70W3 = 7.36W1 - W2 = 0.19
Images
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Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2024-11-19 21:56 UTC Phase plot with TESS-QLP, ASAS-SN and GDS data.
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Revision History
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3 Otero, Sebastian Alberto 2024-11-19 21:50 UTC Type, period, epoch and range from ASAS-SN, TESS and GDS data. Spectral type from 2024arXiv240811166M. Gaia DR3 position.
2 Admin, VSX 2017-12-15 13:24 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
1 Admin, VSX 2016-01-03 04:07 UTC Initial upload.